Home / Standards / GB/T 42653-2023 GB/T 42653-2023 Active Test method for melt viscosity of glass 玻璃高温黏度试验方法 Standard Type GBT ICS 81.040.01 CCS Q34 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A